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Copying files from one directory to another in Java
...ts()) {
targetLocation.mkdir();
}
String[] children = sourceLocation.list();
for (int i=0; i<children.length; i++) {
copyDirectory(new File(sourceLocation, children[i]),
new File(targetLocation, children[...
Escape text for HTML
...
You can use actual html tags <xmp> and </xmp> to output the string as is to show all of the tags in between the xmp tags.
Or you can also use on the server Server.UrlEncode or HttpUtility.HtmlEncode.
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Enabling error display in PHP via htaccess only
...rror_reporting 999999999
php_value error_reporting -1
# Disable max error string length
php_value log_errors_max_len 0
# Protect error log by preventing public access
<Files PHP_errors.log>
Order allow,deny
Deny from all
Satisfy All
</Files>
...
Pattern to avoid nested try catch blocks?
...should not throw exceptions unless they access external resources or parse strings or something. Anyway in the worst case follow the TryMethod style (like TryParse()) to encapsulate exception logic and make your control flow maintainable and clean:
bool TryCalculate(out double paramOut)
{
try
{...
In Bash, how to add “Are you sure [Y/n]” to any command or alias?
...o_something
else
do_something_else
fi
Note: If $response is an empty string, it will give an error. To fix, simply add quotation marks: "$response". – Always use double quotes in variables containing strings (e.g.: prefer to use "$@" instead $@).
Or, Bash 4.x:
read -r -p "Are you sure? [y/...
Clearing using jQuery
...security reasons you can't set the value of a file input, even to an empty string.
All you have to do is reset the form where the field or if you only want to reset the file input of a form containing other fields, use this:
function reset_field (e) {
e.wrap('<form>').parent('form').trig...
Creating a Pandas DataFrame from a Numpy array: How do I specify the index column and column headers
...g of a list of lists, representing a two-dimensional array with row labels and column names as shown below:
9 Answers
...
The data-toggle attributes in Twitter Bootstrap
...the data itself in quotes separated by an equal sign. This data can be any string that is valid on a web page. For example: data-main-ingredient="chocolate".
You can then apply these data attributes to any HTML element you want. For example, you could define the information in the example list abov...
Why does a return in `finally` override `try`?
...ors
} finally {
return res.send('finally');
}
This code will show the string try in your browser. ALSO, the example will show an error in your console. The res.send() function is called twice. This will happen with anything that is a function. The try-catch-finally block will obfuscate this fac...
How to get ID of the last updated row in MySQL?
...uids := CONCAT_WS(',', fooid, @uids) );
SELECT @uids;
This will return a string with all the IDs concatenated by a comma.
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